[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"minerals:one:609":3},{"id":4,"longid":5,"guid":6,"name":7,"shortcode_ima":8,"entrytype":9,"entrytype_text":10,"varietyof":11,"synid":11,"polytypeof":11,"groupid":11,"weighting":12,"nolocadd":13,"blacklisted":13,"mindat_formula":14,"mindat_formula_note":11,"ima_formula":15,"elements":16,"sigelements":22,"key_elements":23,"impurities":24,"cim":25,"ima_status":26,"ima_notes":11,"ima_history":11,"approval_year":11,"publication_year":28,"discovery_year":29,"strunz10ed1":30,"strunz10ed2":31,"strunz10ed3":32,"strunz10ed4":33,"dana8ed1":34,"dana8ed2":34,"dana8ed3":34,"dana8ed4":34,"csystem":35,"cclass":36,"spacegroup":37,"spacegroupset":34,"a":38,"b":34,"c":39,"alpha":34,"beta":34,"gamma":34,"aerror":40,"berror":11,"cerror":40,"alphaerror":11,"betaerror":11,"gammaerror":11,"va3":11,"z":41,"csmetamict":13,"commentcrystal":11,"twinning":11,"tranglide":11,"parting":11,"epitaxidescription":11,"morphology":11,"tlform":42,"hmin":43,"hmax":44,"hardtype":11,"vhnmin":45,"vhnmax":46,"vhnerror":11,"vhng":47,"vhns":11,"commenthard":11,"dmeas":48,"dmeas2":48,"dcalc":49,"dmeaserror":40,"dcalcerror":11,"commentdense":50,"lustre":11,"lustretype":51,"commentluster":11,"diapheny":52,"streak":53,"colour":54,"commentcolor":11,"colors":55,"streak_colors":58,"luminescence":11,"uv":11,"cleavage":11,"cleavagetype":11,"fracturetype":59,"tenacity":60,"commentbreak":11,"opticaltype":61,"opticalsign":62,"opticalalpha":34,"opticalalpha2":34,"opticalalphaerror":11,"opticalbeta":34,"opticalbeta2":34,"opticalbetaerror":11,"opticalgamma":34,"opticalgamma2":34,"opticalgammaerror":11,"opticalomega":63,"opticalomega2":34,"opticalomegaerror":64,"opticalepsilon":65,"opticalepsilon2":34,"opticalepsilonerror":66,"opticaln":34,"opticaln2":34,"opticalnerror":11,"optical2vcalc":34,"optical2vcalc2":34,"optical2vcalcerror":11,"optical2vmeasured":34,"optical2vmeasured2":34,"optical2vmeasurederror":11,"rimin":67,"rimax":68,"opticaldispersion":11,"opticalpleochroism":11,"opticalpleochorismdesc":11,"opticalbirefringence":11,"opticalcomments":69,"opticalcolour":11,"opticalinternal":11,"opticaltropic":11,"opticalanisotropism":11,"opticalbireflectance":11,"opticalextinction":11,"opticalr":11,"specdispm":11,"ir":11,"electrical":11,"magnetism":11,"thermalbehaviour":11,"other":11,"industrial":11,"occurrence":70,"otheroccurrence":11,"type_specimen_store":71,"description_short":11,"aboutname":72,"rock_parent":11,"rock_parent2":11,"rock_root":9,"rock_bgs_code":11,"meteoritical_code":11,"updttime":73,"reviewed_at":11,"variety_of":11,"varieties":74,"group_members":75,"associates":76,"confused_with":77,"type_localities":78,"occurrence_total":40,"citations":83,"images":107,"structures":118,"synonyms":125,"language_names":128,"wikidata_qid":149,"texts":150},609,"1:1:609:1","7acec5d5-7e00-498e-8b4e-328132e74fc9","Belkovite","Bkv",0,"mineral",null,42,false,"Ba\u003Csub>3\u003C\u002Fsub>(Nb,Ti)\u003Csub>6\u003C\u002Fsub>(Si\u003Csub>2\u003C\u002Fsub>O\u003Csub>7\u003C\u002Fsub>)\u003Csub>2\u003C\u002Fsub>O\u003Csub>12\u003C\u002Fsub>","Ba\u003Csub>3\u003C\u002Fsub>Nb\u003Csub>6\u003C\u002Fsub>(Si\u003Csub>2\u003C\u002Fsub>O\u003Csub>7\u003C\u002Fsub>)\u003Csub>2\u003C\u002Fsub>O\u003Csub>12\u003C\u002Fsub>",[17,18,19,20,21],"Ba","Nb","Si","Ti","O",[17,18,19,21],[17,18],"Zr,Al,Fe,Ta,Ca,Na,K","17.8.11",[27],"APPROVED",1991,"1991","9","B","E","75","0","Hexagonal",17,110,"8.966","7.799",3,1,"Thin rims on barian pyrochlore and as barrel-shaped crystals up to 1.0 mm.",6,7,"900","1030",40,"4.16","4.25","Calculated from empirical formula","Adamantine","Transparent","White","Brown",[56,57],"brown","white",[57],"Irregular\u002FUneven","brittle","Uniaxial","+","1.928",2,"2.002",5,1.928,2.002,"anomalously biaxial.","Dolomite-calcite carbonatites.","Mining Institute, St. Petersburg, Russia, 2036\u002F1.\r\nGeology Museum, Kola Branch, Academy of Sciences, Apatity, Russia, 6014.\r\nA.E. Fersman Mineralogical Museum, Academy of Sciences, Moscow, Russia, p584.","Named in honor of Igor Vladimirovich Belkov (Игорь Владимирович Белков) (13 August 1917, Tashkent, Uzbekistan - 18 November 1989, Apatity, Russia), mineralogist, Director, Kola Scientific Center, Apatity, Russia, who explored the Kola Peninsula.","2025-08-11 12:14:18",[],[],[],[],[79],{"id":80,"txt":81,"latitude":11,"longitude":11,"country":82},2709,"Vuoriyarvi alkaline-ultrabasic massif, Northern Karelia, Murmansk Oblast, Russia","Russia",[84,88,91,94,98,102],{"id":85,"year":86,"html":87,"doi":11},16102683,1976,"Choisnet, J., Nguyen, N., Groult, D., Raveau, B. (1976) De nouveaux oxydes a reseau forme d'octaedres NbO6 (TaO6) et de groupes Si2O7: Les phases A3Ta6Si4O26 (A = Ba, Sr) et K6M6Si4O26 (M = Nb, Ta). Materials Research Bulletin: 11: 887-894.",{"id":89,"year":28,"html":90,"doi":11},529175,"Jambor, John L., Puziewicz, Jacek (1991) New Mineral Names. \u003Ci>American Mineralogist\u003C\u002Fi>,  76 (9-10) 1728-1735 \u003Ca target='_blank' href='http:\u002F\u002Fwww.minsocam.org\u002Fammin\u002FAM76\u002FAM76_1728.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":92,"year":28,"html":93,"doi":11},15949816,"Voloshin, A.V., Subbotin, V.V., Pakhomovskii, Y.A., Bakhchisaraitsev, A.Y., Yamnova, N.A., Pushcharovskii, D.Y. (1991) Belkovite - a new barium-niobium silicate from carbonatites of the Vuoriyarvi massif (Kola Peninsula, USSR). Neues Jahrbuch für Mineralogie, Monatshefte: 1991: 23-31.",{"id":95,"year":96,"html":97,"doi":11},16121617,1997,"Mandarino, Joseph A. (1997) \u003Ci>New Minerals 1990-1994\u003C\u002Fi>. The Mineralogical Record Inc., Tuscon, Arizona. 220pp.",{"id":99,"year":100,"html":101,"doi":11},16963169,2001,"(2001) Belkovite. \u003Ci>Handbook of Mineralogy\u003C\u002Fi>. Mineralogical Society of America \u003Ca target='_blank' href='https:\u002F\u002Fwww.handbookofmineralogy.org\u002Fpdfs\u002Fbelkovite.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":103,"year":104,"html":105,"doi":106},12999999,2021,"Dey, Monojit, Bhattacharjee, Sourav, Chakrabarty, Aniket, Mitchell, Roger H., Pal, Supriyo, Pal, Supratim, Sen, Amit Kumar (2021) Compositional variation and genesis of pyrochlore, belkovite and baotite from the Sevattur carbonatite complex, India. \u003Ci>Mineralogical Magazine\u003C\u002Fi>, 85 (4) 588-606 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1180\u002Fmgm.2021.37'>doi:10.1180\u002Fmgm.2021.37\u003C\u002Fa>","10.1180\u002Fmgm.2021.37",[108],{"id":109,"source_url":110,"license_code":111,"credit_html":112,"title":113,"description":114,"author":115,"original_width":116,"original_height":117},2983,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=95866253","CC BY-SA 4.0","David Hospital, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=95866253\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Belkovite.jpg","Brown crystals of this rare niobium mineral belkovite from the type locality in Russia (Vuoriyarvi Massif, Northern Karelia, Murmansk Oblast, Russian Federation). Only two known localities worldwide. Ex Vandenbroucke Museum collection from Waregem, Belgium.","David Hospital",826,809,[119],{"id":120,"url":121,"label":122,"formula":123,"spacegroup":124,"year":86},1364,"\u002Fcif\u002F1364.cif","Choisnet 1976","Ba3 Nb6 Si4 O26","P -6 2 m",[126,127],"Belkoviet","IMA1989-053",[129,133,138,142,145],{"lang":130,"names":131},"ca",[132],"belkovita",{"lang":134,"names":135},"de",[136,137],"Belkovit","IMA 1989-053",{"lang":139,"names":140},"eu",[141],"Belkovita",{"lang":143,"names":144},"it",[7],{"lang":146,"names":147},"zh",[148],"硅钡铌石","Q3637648",{"history":11,"applications":11}]